Precise assembly type pos machine injection molding shell
The limit strips and screw connections solve the problems of loose sealing and dust accumulation in the POS machine injection molded shell during assembly, achieving a firm connection and dust-proof effect for the shell.
Patent Information
- Application Number
- CN202422171759.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-05
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2034-09-05
AI Technical Summary
During the assembly process of the injection-molded shell of the POS machine, gaps are easily generated at the connection between the front cover and the back cover, resulting in a loose seal and affecting the service life. Dust is also easily accumulated on the surface, affecting the sensitivity of the card insertion position.
A precision-assembled injection-molded POS machine shell is designed. It is connected by limit strips, docking stations, mounting tubes and screws to ensure that the front cover and the back cover of the shell are firmly fixed. Slide strips and rails are set on the front cover of the shell to prevent dust accumulation.
A firm connection of the shell is achieved, dust accumulation is avoided, and the service life of the device and the sensitivity of the card insertion position are increased.
Smart Images

Figure CN223322247U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of injection molding shells, in particular to a precision assembled type injection molding shell for a POS machine. Background Art
[0002] Injection-molded housings are plastic products widely used in a variety of fields, including electronics, automobiles, and home appliances. Their design and manufacturing process involves multiple steps, including material selection, mold design, injection molding, and post-processing. This article will detail the design and manufacturing process of injection-molded housings and provide some practical advice and techniques. Material selection is crucial in the design of injection-molded housings. Different application scenarios and functional requirements will influence the choice of material. Common injection molding materials include ABS, PC, and PA, each with unique properties and application ranges. For example, ABS has good overall performance and processing fluidity, making it suitable for general home appliance housings; PC has high strength and transparency, making it suitable for housings requiring transparent windows or high strength requirements; and PA has good wear resistance and rigidity, making it suitable for protective housings for mechanical components.
[0003] During the assembly process of the POS shell after injection molding, gaps will appear at the assembly connection positions of the front cover and the back cover of some shells, resulting in loose internal seals and reducing the service life of the entire device. At the same time, the outer surface will be stacked for a long time, which will cause dust to fall on the surface, making the internal card insertion position insensitive. Utility Model Content
[0004] In order to solve the above technical problems, the utility model provides a precision assembled POS machine injection molding shell, including a shell front cover, the inner wall of the shell front cover is fixedly connected to an inner plate, the surface of the inner plate is fixedly connected to a limit strip, the inner plate is fixed and connected to a mounting tube 1, the surface of the shell front cover is fixedly connected to a plug-in platform, the surface of the shell front cover is fixedly connected to an internal mounting card platform, the outer surface of the shell front cover is fixedly connected to a slide bar 1, the rear end of the shell front cover is clamped with a card plate, the rear end of the card plate is fixedly connected to the shell back cover, the inside of the shell back cover is fixedly connected to a mounting tube 2, the inside of the shell back cover is fixedly connected to a plug-in plate, the surface of the shell back cover is provided with heat dissipation holes, the outer surface of the shell back cover is fixedly connected to a slide bar 2, the rear end of the shell back cover is provided with a mounting hole, and the rear end of the shell back cover is provided with a paper roll bin.
[0005] Through the above technical solution, by setting the limit bar, the front cover of the shell and the rear cover of the shell are placed on the same plane, and then the card board is clamped in the position between the limit bar and the front cover of the shell, and then a slight internal adjustment is made to plug the plug board into the inside of the plug-in platform. When the overall positioning is completed, the second device mounting tube is clamped into the inside of the mounting tube one, so that the front cover of the shell and the rear cover of the shell are completely fixed together, and then the screws are threaded through the mounting holes to the inside of the mounting tube two, and the threaded tube two is threaded to the inside of the mounting tube one to install the whole.
[0006] As a further improvement of the above scheme, the number of the mounting tubes is set to four, and the four mounting tubes are evenly distributed on the surface symmetrically with the center of the inner plate surface; the number of the docking stations is set to three, and the three docking stations are triangularly distributed on the inner plate surface.
[0007] Through the above technical solution, four mounting tubes are provided to connect the inner plate to the four sides of the rear cover of the shell, so that the inner plate is fixed more firmly.
[0008] As a further improvement of the above solution, the number of the sliding bars 1 is set to two, and the two sliding bars 1 are evenly distributed at both ends symmetrically with respect to the center of the front face of the shell front cover.
[0009] As a further improvement of the above scheme, the card plate is clamped between the front cover of the shell and the limit bar, the mounting tube 2 is clamped inside the mounting tube 1, the plug plate is plugged into the inside of the docking station, the mounting hole is concentric with the mounting tube 2, and there are two slide bars 2. The two slide bars 2 are symmetrically and evenly distributed at both ends with the center of the front face of the shell rear cover, and the paper roll bin is arranged above the rear end center of the shell rear cover.
[0010] Through the above technical solution, the mounting hole 1 is concentric with the mounting tube 2, and during installation, the mounting tube 2 is clamped inside the mounting tube 1, and the mounting tube 1 and the mounting tube 2 can be completely connected and fixed by screws.
[0011] As a further improvement of the above solution, a surface of the slide bar is slidably connected to a slide rail, and a protective cover is fixedly connected to the surface of the slide rail.
[0012] Through the above technical solution, by setting the slide bar 1, the slide rail is slidably connected to the surface of the slide bar 1, and the protective cover protects the front of the shell front cover to prevent dust from falling on it.
[0013] As a further improvement of the above solution, there are two slide rails, and the two slide rails are symmetrically and evenly distributed on the inner wall with respect to the center of the front face of the protective cover.
[0014] Compared with the prior art, the beneficial effects of the present invention are:
[0015] The utility model places the front cover of the shell and the rear cover of the shell on the same plane by setting a limit bar, then clamps the card plate in the position between the limit bar and the front cover of the shell, and then makes slight internal adjustments to plug the plug plate into the inside of the plug-in platform. When the overall positioning is completed, the second device mounting tube is clamped into the inside of the first mounting tube, and the front cover of the shell and the rear cover of the shell are completely fixed together. Then, the screws are threadedly connected to the inside of the second mounting tube through the mounting holes, and the second threaded tube is threadedly connected to the inside of the first mounting tube to install the whole.
[0016] The utility model provides a slide bar 1, and the slide rail is slidably connected to the surface of the slide bar 1, and the protective cover protects the front surface of the shell front cover to prevent dust from falling on it. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic diagram of the overall structure of the utility model;
[0018] Figure 2 This is a schematic diagram of the rear end structure of the inner plate of the utility model;
[0019] Figure 3 This is a schematic diagram of the internal structure of the rear cover of the housing of the utility model;
[0020] Figure 4 This is a schematic diagram of the front structure of the housing front cover of the utility model;
[0021] Figure 5 This is a schematic diagram of the overall structure of the protective cover of the present utility model.
[0022] In the figure: 1. Front cover of the shell; 2. Inner plate; 3. Limiting bar; 4. Mounting tube 1; 5. Plug-in platform; 6. Internal mounting card platform; 7. Slide bar 1; 8. Card plate; 9. Back cover of the shell; 10. Mounting tube 2; 11. Plug-in board; 12. Heat dissipation hole; 13. Slide bar 2; 14. Mounting hole; 15. Paper roll bin; 16. Slide rail; 17. Protective cover. DETAILED DESCRIPTION
[0023] Below, the present invention is further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.
[0024] Example 1:
[0025] Please combine Figure 1-5, a precision assembled POS machine injection molding shell of this embodiment includes a shell front cover 1, the inner wall of the shell front cover 1 is fixedly connected with an inner plate 2, the surface of the inner plate 2 is fixedly connected with a limit strip 3, the inner plate 2 is fixed and connected with a mounting pipe 4, the surface of the shell front cover 1 is fixedly connected with a plug-in platform 5, the surface of the shell front cover 1 is fixedly connected with an internal mounting card platform 6, the outer surface of the shell front cover 1 is fixedly connected with a slide bar 7, the rear end of the shell front cover 1 is clamped with a card plate 8, the rear end of the card plate 8 is fixedly connected to the shell rear cover 9, the inside of the shell rear cover 9 is fixedly connected with a mounting pipe 2 10, the inside of the shell rear cover 9 is fixedly connected with a plug-in plate 11, the surface of the shell rear cover 9 is provided with a heat dissipation hole 12, the outer surface of the shell rear cover 9 is fixedly connected with a slide bar 2 13, the rear end of the shell rear cover 9 is provided with a mounting hole 14, the shell rear cover 9 A paper roll bin 15 is provided at the rear end, four mounting tubes 4 are provided, and the four mounting tubes 4 are symmetrically and evenly distributed on the surface with the center of the inner plate 2 surface, three docking stations 5 are provided, and the three docking stations 5 are triangularly distributed on the surface of the inner plate 2, two slide bars 7 are provided, and the two slide bars 7 are symmetrically and evenly distributed at both ends with the center of the front face of the shell front cover 1, the card plate 8 is clamped between the shell front cover 1 and the limit bar 3, the mounting tube 2 10 is clamped inside the mounting tube 4, the plug plate 11 is plugged into the inside of the plugging station 5, the mounting hole 14 is concentric with the mounting tube 2 10, two slide bars 13 are provided, and the two slide bars 2 13 are symmetrically and evenly distributed at both ends with the center of the front face of the shell rear cover 9, and the paper roll bin 15 is provided above the rear end center of the shell rear cover 9.
[0026] The surface of the slide bar 7 is slidably connected to a slide rail 16, and the surface of the slide rail 16 is fixedly connected to a protective cover 17.
[0027] There are two slide rails 16 , and the two slide rails 16 are evenly distributed on the inner wall symmetrically with respect to the center of the front face of the protective cover 17 .
[0028] The implementation principle of a precision assembled POS machine injection molded shell in the embodiment of the present application is: when the POS machine is injection molded and assembled, first place the shell front cover 1 and the shell back cover 9 on the same plane, then clamp the card plate 8 in the position between the limit bar 3 and the shell front cover 1, then make slight internal adjustments, and plug the plug plate 11 into the inside of the plug-in platform 5. When the overall positioning is completed, clamp the device mounting tube 2 10 into the inside of the mounting tube 1 4, and completely fix the shell front cover 1 and the shell back cover 9 together. Then, through the mounting hole 14, thread the screw through the mounting hole 14 to the inside of the mounting tube 2 10, and thread the screw through the threaded tube 2 to the inside of the mounting tube 4, and install the whole thing. Through the slide bar 1 7, slide the slide rail 16 on the surface of the slide bar 1 7, and use the protective cover 17 to protect the front of the shell front cover 1 to prevent dust from falling on it.
[0029] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.
Claims
1. A precision assembled POS machine injection molded housing, characterized by: The invention comprises a shell front cover (1), wherein the inner wall of the shell front cover (1) is fixedly connected to an inner plate (2), the surface of the inner plate (2) is fixedly connected to a limit strip (3), the inner plate (2) is fixedly connected to a mounting tube (4), the surface of the shell front cover (1) is fixedly connected to a plug-in platform (5), the surface of the shell front cover (1) is fixedly connected to an internal mounting card platform (6), the outer surface of the shell front cover (1) is fixedly connected to a slide bar (7), and the rear end of the shell front cover (1) is clamped with a card plate. (8), the rear end of the card plate (8) is fixedly connected to the shell rear cover (9), the interior of the shell rear cover (9) is fixedly connected to the second mounting tube (10), the interior of the shell rear cover (9) is fixedly connected to the plug board (11), the surface of the shell rear cover (9) is provided with a heat dissipation hole (12), the outer surface of the shell rear cover (9) is fixedly connected to the second sliding bar (13), the rear end of the shell rear cover (9) is provided with a mounting hole (14), and the rear end of the shell rear cover (9) is provided with a roll paper bin (15).
2. The precision assembled POS machine injection molded housing according to claim 1, characterized in that: The number of the mounting tubes (4) is four, and the four mounting tubes (4) are evenly distributed on the surface of the inner plate (2) with a center symmetrical distribution. The number of the docking stations (5) is three, and the three docking stations (5) are triangularly distributed on the surface of the inner plate (2).
3. The precision assembled POS machine injection molded housing according to claim 1, characterized in that: The number of the slide bars (7) is two, and the two slide bars (7) are evenly distributed at both ends symmetrically with respect to the center of the front face of the housing front cover (1).
4. The precision assembled POS machine injection molded housing according to claim 1, characterized in that: The card plate (8) is clamped between the front cover of the shell (1) and the limit strip (3), the second mounting tube (10) is clamped inside the first mounting tube (4), the plug plate (11) is plugged into the inside of the plug-in platform (5), the mounting hole (14) is concentric with the second mounting tube (10), the number of the second slide bar (13) is two, and the two second slide bars (13) are symmetrically and evenly distributed at both ends with respect to the center of the front face of the rear cover (9) of the shell, and the roll paper bin (15) is arranged above the rear end center of the rear cover (9) of the shell.
5. The precision assembled POS machine injection molded housing according to claim 1, characterized in that: The surface of the slide bar 1 (7) is slidably connected to a slide rail (16), and the surface of the slide rail (16) is fixedly connected to a protective cover (17).
6. The precision assembled POS machine injection molded housing according to claim 5, characterized in that: There are two slide rails (16), and the two slide rails (16) are evenly distributed on the inner wall symmetrically with respect to the center of the front of the protective cover (17).